To measure the Spring Profile one must use a plunge micrometer and then measure the distance from the top of the Optics Table down to the Spring.  For each Spring there are two access points/thru-holes for the micrometer:  at the Spring Tip & at the Spring Base (I forgot to measure the Spring Base measurement when I did this last Wed, so I re-did the measurement this morning)

HAM3 Spring Profiles

Spring 1 (where tip location warrants corner location, in other words Spring1 is mounted on Spring Post which has Corner 3 Actuator & CPS, but Tip is in Corner1 zone)
base:  0.388"
tip:  0.375"

Spring 2
base:  0.399"
tip:  0.381"

Spring 3
base:  0.390"
tip:  0.378"

These measurements were made with our clean plunge micrometer.  It was fitted with a 2" extension.  Measurements are +/- 0.0005" (this is the slop of the locked Lockers).  I also made Tip measurements where I avoided the Spring Hatches---just stayed on the Optics Table.